I would be very hurt if I thought that any reader had not already bought a copy of my 2010 Ordo. But I would like to commend an Ordo which is not mine - although it is compiled by a friend of mine.
will enable you to order the S Lawrence Press Ordo.
This fine and elegantly produced ORDO provides information about the Roman Calendar and Rite as it was left on the Accession of Pius XII (although there are just two or three ... I'll come clean: I've only spotted two ... small indications that the world did not end in 1939). That cut-off is very well chosen; the Pontificate of Pius XII is the beginning of Bugnini. That gentleman began his wrecking career as Secretary of the Commission which 'reformed' the rites of Holy Week. This is commonly thought of as a mere detail; but it is not. Holy Week and the Easter Vigil are the most significant points of the Christian Year, and Bugnini changed them in ways even more radical and subversive than he subsequently did the rest of the Roman Rite. The Bug***i got away with it because - we had better be honest - the liturgical rites of Holy Week had come to be largely ignored by the great majority of the laity. They were not of obligation and they were lengthy and they were opaque.
Pius XII was not the Start of the Rot. Pius X changed the rubrics regarding the Calendar. Thus, before his time, a large number of Sundays were obscured by the permanent fixing onto the xth Sunday of Ymonth of lollipop celebrations which superseded them (see my Holy Relics post on November 5). Pius X put the lollipops onto fixed days and restored the Sunday Masses; but, out of pastoral sensitivity and an instinct for a Hermeneutic of Continuity he allowed the Lollipop masses to continue to be said on the Sundays they previously owned (the S Lawrence ORDO gives these optional survivals of the previous Baroque Calendar).
Pius X also messed up the distribution of the Breviary Psalter, eliminating, for example, psalms 148-149-150 from their permanent position at daily Lauds. Since this usage had been part of the worship of devout Jews in the time of our Incarnate Lord, a lot of liturgists were rather grumpy about it. And even Papa Sarto was not the first to breach the really ancient continuities; in the 1620s Urban VIII completely rewrote the Breviary Hymns to make them sound as if they had been written by the pagan Augustan poet Horace. Vatican II rightly ordered the ancient texts to be restored. As I have explained in recent posts (have you tried the SEARCH engine on this blog?), the invention of printing was the crucial factor which made such papal arrogance a viable possibility, and led to its apotheosis in the post-Vatican II disasters. God bless Benedict XVI for beginning a process of rolling it all back.
And the S Lawrence ORDO will also show you the full old system of commemorations. You see ... but no: I've written on that also - on the synchronic and diachronic unities involved - not long ago. Try the SEARCH facility!
If you get the S Lawrence ORDO and constantly revisit my former posts through SEARCH, you will begin to discover just how revolutionary and discontinuous the Missal of 1962 is; and how unworthy to be treated in a fundamentalist way. That was something Mgr Lefebvre got wrong.